The Bomber Z1 Coil fork shares the same 36mm chassis and GRIP damper as the modern-day Bomber Z1, but combined with the most advanced coil spring system Marzocchi has ever made. Features: Ultra-lightweight tempered silicon-chromium steel spring (Medium Spring included) Noise management system for near silent performance Integrated air assist for progressivity and bottom out control External preload adjuster to dial in sag and firmness off the top Travel can easily be changed in 10mm increments from 150-180mm (depending on wheel size) via included reconfigurable internal spacers Additional springs sold separately to fine-tune and adjust for rider preference Specs: ColorMatte Black Crown Race40 Positive SpringCoil Stanchion Diameter36mm Steerer TypeTapered Travel (mm)170mm Maximum Tire Width66mm Front Axle15mm Thru x 110mm Axle to Crown Length566mm Steerer Tube Length (mm)263mm External AdjustmentsRebound Damping S.H.I.S. Stem Clamp Diameter28.6 External AdjustmentsHigh Speed Compression Damping Offset44mm Negative SpringCoil Brake TypePost Mount 180 Wheel Size27.5" Defined ColorBlack